* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #c0e0c0 0%, #a0c0a0 100%);
    min-height: 100vh;
    padding: 20px;
}

/* Efeito metálico branco neve */
.metallic-white {
    background: linear-gradient(145deg, #ffffff, #e8ecef);
    box-shadow: 5px 5px 15px rgba(0,0,0,0.1), -5px -5px 15px rgba(255,255,255,0.7);
    border: 1px solid rgba(255,255,255,0.5);
}

/* Efeito metálico verde */
.metallic-green {
    background: linear-gradient(145deg, #2d6a4f, #1b4332);
    box-shadow: 5px 5px 15px rgba(0,0,0,0.2);
    color: white;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: rgba(255,255,255,0.9);
    border-radius: 20px;
    padding: 20px;
    backdrop-filter: blur(5px);
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 30px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo-img {
    max-height: 80px;
}

nav {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

nav a, .btn {
    display: inline-block;
    padding: 10px 20px;
    background: linear-gradient(145deg, #2d6a4f, #1b4332);
    color: white;
    text-decoration: none;
    border-radius: 10px;
    transition: 0.3s;
    border: none;
    cursor: pointer;
    font-weight: bold;
}

nav a:hover, .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn-danger {
    background: linear-gradient(145deg, #dc3545, #a71d2a);
}

.btn-warning {
    background: linear-gradient(145deg, #ffc107, #d39e00);
    color: #333;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 5px;
    color: #1b4332;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

table th, table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

table th {
    background: linear-gradient(145deg, #2d6a4f, #1b4332);
    color: white;
}

.banner-area {
    position: relative;
    margin-bottom: 30px;
    border-radius: 15px;
    overflow: hidden;
}

.banner-img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.banner-text {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    font-size: 24px;
    font-weight: bold;
}

.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.card {
    padding: 30px;
    text-align: center;
    border-radius: 15px;
}

.card h3 {
    font-size: 48px;
    margin-bottom: 10px;
}

.login-box {
    max-width: 400px;
    margin: 100px auto;
    padding: 40px;
    border-radius: 20px;
}